4 pack round blue light filter reading glasses uvr9002d Magnification Strength:+1.00 The performance of blue light

The performance of blue light blocking:block 35% within 500nm

20% color distortion due to 30% blue color was filtered out

Lens height about 1 13/16 inches (46mm)

Protect your eyes with the best blue light blocking glasses money can buy

4 pack round blue light filter reading glasses uvr9002d Magnification Strength:+1.00 The performance of blue lightAcrylic lens, plastic frame with spring hinges Block 40% blue light, almost no color distortion Frame width about 5 7 16 inches (138mm) Lens width about 2 inches (51mm) Lens height about 1 11 16 inches (43mm) Bridge(DBL) about 1 2 inches (13mm) Temple length about 5 5 16 inches (135mm)